class_docstr: Begin(state_name) is a Plex action which causes the Scanner to
  enter the state |state_name|. See the docstring of Plex.Lexicon
  for more information.
code: def same_as(self, other):
      return (
          isinstance(other, Begin)
          and self.state_name == other.state_name
      )
  
label_desc: Use image node_id 4 for calling the Begin obj's underlying member method code with example usage: obj.same_as(other) and returns: unknown